diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index dfa6a4dc6..5d5a7ed69 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -1480,9 +1480,8 @@
       }
       this.rmi(item);
       next = root.next;
-      next.prev = item;
+      root.next = next.prev = item;
       item.next = next;
-      root.next = item;
       return item.prev = root;
     };
 
@@ -1493,12 +1492,11 @@
         this.push(item);
       }
       first = this.first;
-      if (this !== first) {
-        item.next = first;
-      }
-      if (first) {
-        first.prev = item;
+      if (item === first) {
+        return;
       }
+      item.next = first;
+      first.prev = item;
       this.first = item;
       return delete item.prev;
     };
@@ -1533,7 +1531,7 @@
       this.length--;
       this.rmi(item);
       delete item.next;
-      return delete item.previous;
+      return delete item.prev;
     };
 
     RandomAccessList.prototype.rmi = function(item) {
@@ -4968,11 +4966,11 @@
       });
     },
     setup: function() {
-      var ID, post, posts;
+      var ID, post, _ref;
       $.off(d, '4chanXInitFinished', QuoteThreading.setup);
-      posts = g.posts;
-      for (ID in posts) {
-        post = posts[ID];
+      _ref = g.posts;
+      for (ID in _ref) {
+        post = _ref[ID];
         if (post.cb) {
           post.cb.call(post);
         }
@@ -4980,48 +4978,42 @@
       return QuoteThreading.hasRun = true;
     },
     node: function() {
-      var ID, fullID, keys, len, post, posts, qid, quote, quotes, replies, uniq, _i, _len;
+      var ID, fullID, keys, len, post, posts, quote, quotes, _i, _len;
       if (this.isClone || !QuoteThreading.enabled || this.thread.OP === this) {
         return;
       }
-      replies = Unread.replies;
       quotes = this.quotes, ID = this.ID, fullID = this.fullID;
       posts = g.posts;
       if (!(post = posts[fullID]) || post.isHidden) {
         return;
       }
-      uniq = {};
+      keys = [];
       len = ("" + g.BOARD).length + 1;
       for (_i = 0, _len = quotes.length; _i < _len; _i++) {
         quote = quotes[_i];
-        qid = quote;
-        if (!(qid.slice(len) < ID)) {
-          continue;
-        }
-        if (qid in posts) {
-          uniq[qid.slice(len)] = true;
+        if (quote.slice(len) < ID) {
+          if (quote in posts) {
+            keys.push(quote);
+          }
         }
       }
-      keys = Object.keys(uniq);
       if (keys.length !== 1) {
         return;
       }
-      this.threaded = "" + g.BOARD + "." + keys[0];
+      this.threaded = keys[0];
       return this.cb = QuoteThreading.nodeinsert;
     },
     nodeinsert: function() {
       var ID, bottom, height, post, posts, root, threadContainer, top, _ref;
       post = g.posts[this.threaded];
       posts = Unread.posts;
-      this.threaded;
-      this.cb;
       if (this.thread.OP === post) {
         return false;
       }
       if (QuoteThreading.hasRun) {
         height = doc.clientHeight;
         _ref = post.nodes.root.getBoundingClientRect(), bottom = _ref.bottom, top = _ref.top;
-        if (!(posts[post.ID] || ((bottom < height) && (top > 0)))) {
+        if (!((posts != null ? posts[post.ID] : void 0) || ((bottom < height) && (top > 0)))) {
           return false;
         }
       }
@@ -5036,6 +5028,9 @@
         threadContainer = root.nextSibling;
       }
       $.add(threadContainer, this.nodes.root);
+      if (!Conf['Unread Count'] || this.ID < Unread.lastReadPost) {
+        return true;
+      }
       if (!posts[this.ID]) {
         posts.push(this);
       }
@@ -5052,8 +5047,10 @@
     },
     toggle: function() {
       var container, containers, node, post, replies, reply, thread, _i, _j, _k, _len, _len1, _len2, _ref;
-      Unread.posts = new RandomAccessList;
-      Unread.ready();
+      if (Conf['Unread Count']) {
+        Unread.posts = new RandomAccessList;
+        Unread.ready();
+      }
       thread = $('.thread');
       replies = $$('.thread > .replyContainer, .threadContainer > .replyContainer', thread);
       QuoteThreading.enabled = this.checked;
@@ -5091,7 +5088,9 @@
           $.rmClass(post, 'threadOP');
         }
       }
-      return Unread.update(true);
+      if (Conf['Unread Count']) {
+        return Unread.read();
+      }
     },
     kb: function() {
       var control;
diff --git a/builds/crx/script.js b/builds/crx/script.js
index e314fce6a..b18addccd 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -1486,9 +1486,8 @@
       }
       this.rmi(item);
       next = root.next;
-      next.prev = item;
+      root.next = next.prev = item;
       item.next = next;
-      root.next = item;
       return item.prev = root;
     };
 
@@ -1499,12 +1498,11 @@
         this.push(item);
       }
       first = this.first;
-      if (this !== first) {
-        item.next = first;
-      }
-      if (first) {
-        first.prev = item;
+      if (item === first) {
+        return;
       }
+      item.next = first;
+      first.prev = item;
       this.first = item;
       return delete item.prev;
     };
@@ -1539,7 +1537,7 @@
       this.length--;
       this.rmi(item);
       delete item.next;
-      return delete item.previous;
+      return delete item.prev;
     };
 
     RandomAccessList.prototype.rmi = function(item) {
@@ -4971,11 +4969,11 @@
       });
     },
     setup: function() {
-      var ID, post, posts;
+      var ID, post, _ref;
       $.off(d, '4chanXInitFinished', QuoteThreading.setup);
-      posts = g.posts;
-      for (ID in posts) {
-        post = posts[ID];
+      _ref = g.posts;
+      for (ID in _ref) {
+        post = _ref[ID];
         if (post.cb) {
           post.cb.call(post);
         }
@@ -4983,48 +4981,42 @@
       return QuoteThreading.hasRun = true;
     },
     node: function() {
-      var ID, fullID, keys, len, post, posts, qid, quote, quotes, replies, uniq, _i, _len;
+      var ID, fullID, keys, len, post, posts, quote, quotes, _i, _len;
       if (this.isClone || !QuoteThreading.enabled || this.thread.OP === this) {
         return;
       }
-      replies = Unread.replies;
       quotes = this.quotes, ID = this.ID, fullID = this.fullID;
       posts = g.posts;
       if (!(post = posts[fullID]) || post.isHidden) {
         return;
       }
-      uniq = {};
+      keys = [];
       len = ("" + g.BOARD).length + 1;
       for (_i = 0, _len = quotes.length; _i < _len; _i++) {
         quote = quotes[_i];
-        qid = quote;
-        if (!(qid.slice(len) < ID)) {
-          continue;
-        }
-        if (qid in posts) {
-          uniq[qid.slice(len)] = true;
+        if (quote.slice(len) < ID) {
+          if (quote in posts) {
+            keys.push(quote);
+          }
         }
       }
-      keys = Object.keys(uniq);
       if (keys.length !== 1) {
         return;
       }
-      this.threaded = "" + g.BOARD + "." + keys[0];
+      this.threaded = keys[0];
       return this.cb = QuoteThreading.nodeinsert;
     },
     nodeinsert: function() {
       var ID, bottom, height, post, posts, root, threadContainer, top, _ref;
       post = g.posts[this.threaded];
       posts = Unread.posts;
-      this.threaded;
-      this.cb;
       if (this.thread.OP === post) {
         return false;
       }
       if (QuoteThreading.hasRun) {
         height = doc.clientHeight;
         _ref = post.nodes.root.getBoundingClientRect(), bottom = _ref.bottom, top = _ref.top;
-        if (!(posts[post.ID] || ((bottom < height) && (top > 0)))) {
+        if (!((posts != null ? posts[post.ID] : void 0) || ((bottom < height) && (top > 0)))) {
           return false;
         }
       }
@@ -5039,6 +5031,9 @@
         threadContainer = root.nextSibling;
       }
       $.add(threadContainer, this.nodes.root);
+      if (!Conf['Unread Count'] || this.ID < Unread.lastReadPost) {
+        return true;
+      }
       if (!posts[this.ID]) {
         posts.push(this);
       }
@@ -5055,8 +5050,10 @@
     },
     toggle: function() {
       var container, containers, node, post, replies, reply, thread, _i, _j, _k, _len, _len1, _len2, _ref;
-      Unread.posts = new RandomAccessList;
-      Unread.ready();
+      if (Conf['Unread Count']) {
+        Unread.posts = new RandomAccessList;
+        Unread.ready();
+      }
       thread = $('.thread');
       replies = $$('.thread > .replyContainer, .threadContainer > .replyContainer', thread);
       QuoteThreading.enabled = this.checked;
@@ -5094,7 +5091,9 @@
           $.rmClass(post, 'threadOP');
         }
       }
-      return Unread.update(true);
+      if (Conf['Unread Count']) {
+        return Unread.read();
+      }
     },
     kb: function() {
       var control;
diff --git a/src/General/lib/randomaccesslist.class b/src/General/lib/randomaccesslist.class
index 40598be24..a2907aa01 100644
--- a/src/General/lib/randomaccesslist.class
+++ b/src/General/lib/randomaccesslist.class
@@ -19,17 +19,17 @@ class RandomAccessList
     @rmi item
 
     {next} = root
-    next.prev = item
+    root.next = next.prev = item
     item.next = next
-    root.next = item
     item.prev = root
   
   prepend: (item) ->
     {ID} = item
     @push item unless @[ID]
     {first} = @
-    item.next = first unless @ is first
-    first.prev = item if first
+    return if item is first
+    item.next = first
+    first.prev = item
     @first = item
     delete item.prev
 
@@ -52,7 +52,7 @@ class RandomAccessList
     @length--
     @rmi item
     delete item.next
-    delete item.previous
+    delete item.prev
 
   rmi: (item) ->
     {prev, next} = item
diff --git a/src/Monitoring/Unread.coffee b/src/Monitoring/Unread.coffee
index 90e78b9d4..52789e67d 100755
--- a/src/Monitoring/Unread.coffee
+++ b/src/Monitoring/Unread.coffee
@@ -7,7 +7,7 @@ Unread =
       id: 'unread-line'
     @posts = new RandomAccessList
     @postsQuotingYou = []
-    
+
     @qr = if QR.db
       ({board, thread, ID}) ->
         data =
@@ -37,8 +37,7 @@ Unread =
   ready: ->
     $.off d, '4chanXInitFinished', Unread.ready
     posts = []
-    for ID, post of Unread.thread.posts
-      posts.push post if post.isReply
+    posts.push post for ID, post of Unread.thread.posts when post.isReply
     Unread.addPosts posts
     QuoteThreading.setup() if Conf['Quote Threading']
     Unread.scroll() if Conf['Scroll to Last Read Post']
@@ -148,7 +147,7 @@ Unread =
       if Conf['Mark Quotes of You'] and post.info.yours
         QuoteYou.lastRead = post.nodes.root
       posts.rm ID
-      
+
       if post is posts.first
         c.log posts
         break
diff --git a/src/Quotelinks/QuoteThreading.coffee b/src/Quotelinks/QuoteThreading.coffee
index f4930b6be..eacb9b753 100755
--- a/src/Quotelinks/QuoteThreading.coffee
+++ b/src/Quotelinks/QuoteThreading.coffee
@@ -26,42 +26,32 @@ QuoteThreading =
 
   setup: ->
     $.off d, '4chanXInitFinished', QuoteThreading.setup
-    {posts} = g
 
-    post.cb.call post for ID, post of posts when post.cb
+    post.cb.call post for ID, post of g.posts when post.cb
 
     QuoteThreading.hasRun = true
 
   node: ->
     return if @isClone or not QuoteThreading.enabled or @thread.OP is @
 
-    {replies} = Unread
-
     {quotes, ID, fullID} = @
     {posts} = g
     return if !(post = posts[fullID]) or post.isHidden # Filtered
 
-    uniq = {}
+    keys = []
     len = "#{g.BOARD}".length + 1
-    for quote in quotes
-      qid = quote
-      continue unless qid[len..] < ID
-      if qid of posts
-        uniq[qid[len..]] = true
+    for quote in quotes when quote[len..] < ID
+      keys.push quote if quote of posts
 
-    keys = Object.keys uniq
     return unless keys.length is 1
 
-    @threaded = "#{g.BOARD}.#{keys[0]}"
+    @threaded = keys[0]
     @cb       = QuoteThreading.nodeinsert
 
   nodeinsert: ->
     post    = g.posts[@threaded]
     {posts} = Unread
 
-    @threaded
-    @cb
-
     return false if @thread.OP is post
 
     if QuoteThreading.hasRun
@@ -69,7 +59,7 @@ QuoteThreading =
       {bottom, top} = post.nodes.root.getBoundingClientRect()
 
       # Post is unread or is fully visible.
-      return false unless posts[post.ID] or ((bottom < height) and (top > 0))
+      return false unless posts?[post.ID] or ((bottom < height) and (top > 0))
 
     root = post.nodes.root
     unless $.hasClass root, 'threadOP'
@@ -82,6 +72,8 @@ QuoteThreading =
 
     $.add threadContainer, @nodes.root
 
+    return true if not Conf['Unread Count'] or @ID < Unread.lastReadPost
+
     posts.push @ unless posts[@ID]
 
     if posts[post.ID]
@@ -91,12 +83,13 @@ QuoteThreading =
         posts.after posts[ID], @
       else
         posts.prepend @
-    
+
     return true
 
   toggle: ->
-    Unread.posts = new RandomAccessList
-    Unread.ready()
+    if Conf['Unread Count']
+      Unread.posts = new RandomAccessList
+      Unread.ready()
 
     thread  = $ '.thread'
     replies = $$ '.thread > .replyContainer, .threadContainer > .replyContainer', thread
@@ -120,7 +113,7 @@ QuoteThreading =
       containers = $$ '.threadContainer', thread
       $.rm container for container in containers
       $.rmClass post, 'threadOP' for post in $$ '.threadOP'
-    Unread.update true
+    Unread.read() if Conf['Unread Count']
 
   kb: ->
     control = $.id 'threadingControl'